ASTROSAT CZTI

Data Quality Report

Orbit 34076

Creation date: 2024-06-27T20:54:03.829252
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T04_090T01_9000004840_34076cztM0_level2.evt modeM0/AS1T04_090T01_9000004840_34076cztM0_level2_quad_clean.evt
Size (bytes)548,974,08071,801,280
Size523.5 MB 68.5 MB
Events in quadrant A2,292,949497,692
Events in quadrant B6,736,328426,705
Events in quadrant C2,992,274472,651
Events in quadrant D4,273,234433,620

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098293
B0233862
C0117662
D0161532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488040.081967%
B4880139328.545082%
C4880861.762295%
D48803427.008197%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7031 4880 0 0 0.00% 0.00%
B 7031 4880 1205 1205 17.14% 24.69%
C 7031 4880 84 84 1.19% 1.72%
D 7031 4880 270 270 3.84% 5.53%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 18686 155.46 586 577 116.5
A 13 6 9319 75.05 586 577 116.5
A 13 254 8609 68.95 586 577 116.5
B 5 31 3154210 31546.12 527 514 100.0
B 5 15 929303 9290.59 527 514 100.0
B 5 172 281663 2812.31 527 514 100.0
C 0 10 450077 3616.07 548 553 124.3
C 15 214 212383 1704.01 548 553 124.3
C 3 233 102064 816.58 548 553 124.3
D 8 195 959430 7297.35 543 528 131.4
D 10 118 464758 3532.84 543 528 131.4
D 2 250 216475 1643.38 543 528 131.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter